Matthew Vaughn was set to make X-Men: Days Of Future Pastbefore departing to make Kingsman: Secret Service, and now he’s speaking about how much of his script made it into Bryan Singer’s film.

Talking to Collider, Vaughn has quite a high estimate. “I’d say 90%. I mean, we worked on the script [Simon] Kinsberg and I. It was a really tough decision for me, because I pulled out just because I’d finished the Kingsman: The Secret Service script at the same time and I was like ‘My god if I don’t make a fun spy movie right now, somebody else’s going to do it.’ And I think there’s five coming out next year now. So we’re going to be the first of it not the last. Bryan [Singer] did a few things, which I thought were genius that weren’t in my script.”

One of the changes would have made a big impact on the movie, especially given the current fan-favourite status of Evan Peters’ character.

“I had Juggernaut breaking into the Pentagon, he changed it to Quicksilver and did that fucking brilliantly, I have to add. My idea was the sentinels at the end, I wanted them to look like Mystique. I thought there should be thousands of mystiques attacking them in the future. He changed a few more of the mutants, but it was pretty close. Yeah, it was pretty close.”

At the time it felt like a shame that Vaughn didn’t return, following the excellent First Class. However, having seen Singer’s excellent take on Days Of Future Past, we can definitely say that we’re glad Pietro Maximoff was able to make an impression.